glassutil logging class More...

#include <glassmath.h>

Collaboration diagram for glass3::util::GlassMath:

Static Public Member Functions
static double	sig (double tdif, double sig)
	CGlass significance function. More...

static double	sig_laplace_pdf (double tdif, double sig)
	CGlass laplacian significance function (PDF) More...

static double	random (double x, double y)
	Generate Random Number. More...

static double	gauss (double avg, double std)
	Calculate Gaussian random sample. More...

static void	initializeRandom ()
	initialize random number generator More...

static double	angleDifference (double angle1, double angle2)
	get angle difference between two angles More...

Static Public Attributes
static constexpr double	k_RadiansToDegrees = 57.29577951308
	Radians to Degrees conversion factor. More...

static constexpr double	k_DegreesToRadians = 0.01745329251994
	Degrees to Radians conversion factor. More...

static constexpr double	k_Pi = 3.14159265359
	Pi value. More...

static constexpr double	k_TwoPi = 6.283185307179586
	Two Pi value. More...

Detailed Description

glassutil logging class

The CLogit class encapsulates the logic and functionality needed to write logging information to disk.

Member Function Documentation

double glass3::util::GlassMath::angleDifference	(	double	angle1,
		double	angle2
	)

static

get angle difference between two angles

Takes two angles in degrees and computes the minimum angle difference

Parameters

angle1	- The first angle in degrees
angle2	- The second angle in degrees

Returns: Returns the minimum difference between angles in degrees

Get the minimum angle (degrees) between two angles

double glass3::util::GlassMath::gauss	(	double	avg,
		double	std
	)

static

Calculate Gaussian random sample.

Calculate random normal gaussian deviate value using Box-Muller method. This function is used in determining the randomized step sizes for relocation (anneal and localize)

Parameters

avg	- The mean average value to use in the Box-Muller method
std	- The standard deviation value to use in the Box-Muller method

Returns: Returns the Gaussian random sample

void glass3::util::GlassMath::initializeRandom ( )

static

initialize random number generator

Initializes the random number generator by seeding m_RandomGenerator.

double glass3::util::GlassMath::random	(	double	x,
		double	y
	)

static

Generate Random Number.

Generates random number between x and y. This function is used by gauss in determining the randomized step sizes for relocation (anneal and localize)

Parameters

x	- The minimum random number
y	- The maximum random number

Returns: Returns the random sample

double glass3::util::GlassMath::sig	(	double	tdif,
		double	sig
	)

static

CGlass significance function.

This function calculates the significance function for glasscore, which is the bell shaped curve with sig(0, x) pinned to 0.

Parameters

tdif	- A double containing x value.
sig	- A double value containing the sigma,

Returns: Returns a double value containing significance function result

double glass3::util::GlassMath::sig_laplace_pdf	(	double	tdif,
		double	sig
	)

static

CGlass laplacian significance function (PDF)

This function calculates a laplacian significance used in associator. This should have the affect of being L1 normish, instead of L2 normish. Unlike the other significance function, this returns the PDF value

Parameters

tdif	- A double containing x value.
sig	- A double value containing the sigma,

Returns: Returns a double value containing significance function result

Member Data Documentation

constexpr double glass3::util::GlassMath::k_DegreesToRadians = 0.01745329251994

static

Degrees to Radians conversion factor.

constexpr double glass3::util::GlassMath::k_Pi = 3.14159265359

static

Pi value.

constexpr double glass3::util::GlassMath::k_RadiansToDegrees = 57.29577951308

static

Radians to Degrees conversion factor.

constexpr double glass3::util::GlassMath::k_TwoPi = 6.283185307179586

static

Two Pi value.

The documentation for this class was generated from the following files:

util/include/glassmath.h
util/src/glassmath.cpp

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

Member Data Documentation